The present invention aims to provide a urine suction device improved to achieve quick urine suction. A urine suction device 102 comprises a urine receiver unit 102a and a urine detector unit 102b. The urine detector unit 102b includes a pair of electrode assemblies 118a, 118b adapted to output a detection signal as soon as it is wetted with urine. The pair of electrode assemblies 118a, 118b is sandwiched between a liquid-pervious first sheet 128 and a liquid-pervious second sheet 130. The first and second sheets 128, 130 are put flat and joined together along joint zones 301, 302, 303 provided outside respective pairs of opposite side edges 269a, 269b of the electrode assemblies 118a, 118b. Along the respective joint zones, at least one of the first and second sheets 128, 130 has its thickness locally reduced and the first and second sheets 128, 130 are kept in close contact with each other along the joint zones 301, 302, 303 and in the vicinity of the joint zones.本發明提供一種尿的吸引迅速的吸尿裝置。吸尿裝置(102)具有容器部(102a)與尿檢出部(102b)。尿檢出部(102b)具有被尿液弄濕時,輸出檢出訊號的一對電極部(118a)、118b)。一對電極部(118a、118b)是被透液性的第1薄片(128)與透液性的第2薄片(130)夾著。第1薄片(128)與第2薄片(130)是在一對電極部(118a、118b)各自的側緣部(269a、269b)的外側彼此相對,且至少一方的薄片的厚度在局部變薄的接合部位(301、302、303)接合,並且在接合部位(301、302、303)與鄰接這個的部位緊接。102b‧‧‧尿檢出部118a‧‧‧電極部301‧‧‧接合部位267a‧‧‧側部269a‧‧‧側緣部170‧‧‧絕緣性被覆118b‧‧‧電極部302‧‧‧接合部位303‧‧‧接合部位134‧‧‧肌膚抵接薄片267b‧‧‧側部269b‧‧‧側緣部128‧‧‧緩衝薄片118‧‧‧尿感應器
